:root{--bg:#eef2f8;--surface:#ffffff;--ink:#0e1a2e;--muted:#566883;--line:#d5deea;--sign:#0b4396;--accent:#0b4396;--on-accent:#ffffff;--chip:#e3eaf5;--amber:#f0b323;--on-amber:#2b2100;--ok:#12794a;--ok-bg:#e0f3ea;--bad:#b8321f;--bad-bg:#fbe6e2;--f:"Barlow","Hind Siliguri","Noto Sans Bengali",system-ui,sans-serif}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0a111f;--surface:#121c30;--ink:#e9eff9;--muted:#9bb0cf;--line:#243452;--sign:#1a56b3;--accent:#7fb0ff;--on-accent:#0a111f;--chip:#1b2942;--amber:#f0b323;--on-amber:#2b2100;--ok:#4cc58a;--ok-bg:#123325;--bad:#ff8a78;--bad-bg:#3a1a17;color-scheme:dark}}:root[data-theme=dark]{--bg:#0a111f;--surface:#121c30;--ink:#e9eff9;--muted:#9bb0cf;--line:#243452;--sign:#1a56b3;--accent:#7fb0ff;--on-accent:#0a111f;--chip:#1b2942;--amber:#f0b323;--on-amber:#2b2100;--ok:#4cc58a;--ok-bg:#123325;--bad:#ff8a78;--bad-bg:#3a1a17;color-scheme:dark}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);font-family:var(--f);font-size:16px;line-height:1.55;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:12px 96px}.shell{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:16px}h1,h2,h3,p{margin:0}h2,h3{text-wrap:balance}button{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.lang-both .bn,.lang-both .sub{display:block}.lang-both .sub{font-size:.84em;color:var(--muted);margin-top:1px}.bn{line-height:1.6}.sign{background:var(--sign);color:#fff;border-radius:14px;padding:18px 18px 14px;outline:2px solid rgba(255,255,255,.92);outline-offset:-7px;display:flex;flex-direction:column;gap:12px}.sign .t1{font-size:26px;font-weight:700;line-height:1.25}.sign .t2{font-size:14px;opacity:.85;letter-spacing:.04em;text-transform:uppercase;font-weight:600}.seg{display:flex;gap:4px;background:#ffffff29;border-radius:10px;padding:3px;align-self:flex-start}.seg button{border:0;background:transparent;color:#fff;border-radius:8px;padding:6px 12px;min-height:36px;cursor:pointer;font-weight:600}.seg button[aria-pressed=true]{background:#fff;color:#0b4396}.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px}.eyebrow{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}.btn{appearance:none;border:0;border-radius:10px;min-height:48px;padding:10px 18px;font-weight:600;cursor:pointer;background:var(--accent);color:var(--on-accent);text-align:center}.btn.ghost{background:transparent;border:1.5px solid var(--line);color:var(--ink)}.btn.block{width:100%}.row{display:flex;gap:10px;flex-wrap:wrap}.row>*{flex:1 1 140px;min-width:0}.muted{color:var(--muted)}.chip{display:inline-block;background:var(--chip);border-radius:999px;padding:2px 10px;font-size:13px;font-weight:600}.bar{height:8px;background:var(--chip);border-radius:99px;overflow:hidden}.bar i{display:block;height:100%;background:var(--accent);border-radius:99px}.mock{display:flex;flex-direction:column;gap:12px}.mock h2{font-size:24px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.topic{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:8px;min-width:0;min-height:96px}.topic .nm{font-weight:600}.sec-h{font-size:18px;font-weight:700}.qbar{display:flex;align-items:center;gap:10px}.qbar .qtitle{flex:1;min-width:0;font-weight:600}.icon{appearance:none;width:44px;height:44px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface);cursor:pointer;font-size:20px}.timer,.qcount{font-variant-numeric:tabular-nums;font-weight:700}.timer{background:var(--chip);padding:4px 10px;border-radius:8px}.prog{height:6px;background:var(--chip);border-radius:99px;overflow:hidden}.prog i{display:block;height:100%;background:var(--accent)}.q{display:flex;flex-direction:column;gap:12px}.qtext{font-size:20px;line-height:1.4}.hint{color:var(--accent);font-weight:700;font-size:14px}.qsign{width:112px;height:112px;margin:0 auto}.qsign:has(img){width:100%;height:auto;margin:6px 0 10px}.qsign svg,.sg svg{width:100%;height:100%;display:block}.opts{display:flex;flex-direction:column;gap:10px}.opt{display:flex;gap:12px;align-items:flex-start;width:100%;text-align:left;background:var(--surface);border:1.5px solid var(--line);border-radius:12px;padding:12px;min-height:56px;cursor:pointer}.opt .ltr{flex:none;width:28px;height:28px;border-radius:50%;background:var(--chip);display:grid;place-items:center;font-weight:700;font-size:14px}.opt .tx{min-width:0;flex:1}.opt.sel{border-color:var(--accent);background:var(--chip)}.opt.ok{border-color:var(--ok);background:var(--ok-bg)}.opt.bad{border-color:var(--bad);background:var(--bad-bg)}.expl{border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:6px}.expl.good{background:var(--ok-bg)}.expl.wrong{background:var(--bad-bg)}.expl strong{font-size:15px}.dots{display:flex;flex-wrap:wrap;gap:6px}.dot{width:36px;height:36px;border-radius:8px;border:1.5px solid var(--line);background:var(--surface);cursor:pointer;font-variant-numeric:tabular-nums;font-weight:600;font-size:13px}.dot.done{background:var(--chip);border-color:var(--accent)}.dot.cur{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}.warnbar{background:var(--bad-bg);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:10px}.score{font-size:56px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}.badge{display:inline-block;border-radius:8px;padding:4px 12px;font-weight:700}.badge.pass{background:var(--ok-bg);color:var(--ok)}.badge.fail{background:var(--bad-bg);color:var(--bad)}.rev{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--line);padding-top:12px}.sgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.sgc{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:8px;min-width:0}.sg{width:84px;height:84px;margin:0 auto}.sgc .nm{font-weight:700;font-size:15px}.sgc .ms{font-size:14px}canvas{width:100%;height:auto;display:block;border-radius:12px;background:#bcd7f2}.tap{min-height:84px;font-size:22px;border-radius:14px;background:var(--amber);color:var(--on-amber)}.tap:active{transform:scale(.98)}.tl{position:relative;height:18px;background:var(--chip);border-radius:6px}.tl .w{position:absolute;top:0;bottom:0;background:var(--ok);opacity:.35;border-radius:6px}.tl .k{position:absolute;top:-3px;bottom:-3px;width:3px;background:var(--bad);border-radius:2px}.stars{font-variant-numeric:tabular-nums;font-weight:700}.rows{display:flex;flex-direction:column;gap:10px}.sr{display:grid;grid-template-columns:54px 1fr 44px;gap:10px;align-items:center;font-variant-numeric:tabular-nums}.sr .b{display:flex;height:22px;border-radius:4px;overflow:hidden;background:var(--chip)}.sr .b .th{background:var(--amber)}.sr .b .br{background:var(--accent)}.sr .sp{font-weight:700}.sr .tt{font-weight:700;text-align:right}.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:13px}.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}.tbl{display:flex;flex-direction:column}.tbl>div{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px solid var(--line)}.tbl>div:first-child{border-top:0}.tbl .v{font-weight:700;white-space:nowrap}ul.k{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:8px}.foot{font-size:13px;color:var(--muted)}nav{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--line);z-index:20;display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:6px max(8px,env(safe-area-inset-right,0px)) calc(6px + env(safe-area-inset-bottom,0px)) max(8px,env(safe-area-inset-left,0px))}nav button{appearance:none;border:0;background:transparent;border-radius:10px;min-height:54px;padding:4px 2px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;color:var(--muted);font-size:13px;line-height:1.2;min-width:0}nav button svg{width:22px;height:22px}nav button[aria-current=true]{background:var(--chip);color:var(--accent);font-weight:700}nav .bn,nav .sub{display:block;text-align:center}nav .sub{font-size:11px}button,.btn,.opt,.topic,.dot,nav button{touch-action:manipulation}body.big{font-size:18px}body.big .qtext{font-size:23px}.chips{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.sc{border-radius:8px;padding:4px 10px;font-weight:700;font-variant-numeric:tabular-nums;background:var(--chip)}.sc.pass{background:var(--ok-bg);color:var(--ok)}.sc.fail{background:var(--bad-bg);color:var(--bad)}.ready{display:flex;flex-direction:column;gap:10px}details{border-top:1px solid var(--line);padding:10px 0}details:first-of-type{border-top:0}summary{cursor:pointer;font-weight:600}details p{margin-top:6px}.tbr{display:grid;grid-template-columns:minmax(0,1fr) 56px;gap:10px;align-items:center}.tbr .bar{grid-column:1/-1}.tbr .n{text-align:right;font-weight:700;font-variant-numeric:tabular-nums}.btn .sub,.seg .sub{color:inherit;opacity:.8}.btn.ghost .sub{color:var(--muted);opacity:1}.hero .sub{color:#d6e5fc}.hero .btn .sub{color:#4b6a9c}.hero .eyebrow .sub{color:#cfe0fb}.sign{background:linear-gradient(160deg,var(--g1),var(--g2));box-shadow:0 6px 18px #0b439640}.brand{display:flex;align-items:center;gap:12px}.logo{width:46px;height:46px;flex:none}.sign .t1{font-size:24px;letter-spacing:-.01em}.hero{background:linear-gradient(160deg,var(--g1),var(--g2));color:#fff;border-radius:16px;padding:18px;display:grid;grid-template-columns:1fr auto;gap:12px 16px;align-items:center;box-shadow:0 6px 18px #0b439640}.hero h2{font-size:26px;line-height:1.2}.hero .hm{opacity:.88;font-size:14px;margin-top:4px}.eyebrow.on{color:#cfe0fb}.hbtn{grid-column:1/-1;background:#fff;color:#0b3a85;font-size:17px;box-shadow:0 2px #0000002e}.ring{position:relative;display:grid;place-items:center;flex:none}.ring svg{position:absolute;inset:0;width:100%;height:100%}.ring .rt{fill:none;stroke:#ffffff40;stroke-width:8}.ring .rf{fill:none;stroke:var(--amber);stroke-width:8;stroke-linecap:round;transition:stroke-dasharray .6s}.ring span{font-weight:700;font-size:20px;font-variant-numeric:tabular-nums;position:relative}.resrow .ring .rt{stroke:var(--chip)}.resrow .ring .rf{stroke:var(--accent)}.resrow .ring span{font-size:26px}.resrow{display:flex;justify-content:center;padding:6px 0}.tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px}.tile{appearance:none;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:6px;cursor:pointer;min-height:132px;box-shadow:0 1px 2px #0e1a2e0f;transition:transform .12s,box-shadow .12s}.tile:hover{box-shadow:0 4px 12px #0e1a2e1f}.tile:active{transform:scale(.98)}.tile .ti{width:42px;height:42px;border-radius:12px;background:var(--chip);color:var(--accent);display:grid;place-items:center}.tile .ti svg{width:24px;height:24px}.tile .tn{font-weight:700;font-size:16px;line-height:1.3}.tile .td{font-size:13px}.card{box-shadow:0 1px 2px #0e1a2e0f}.opt{transition:border-color .12s,background .12s}.opt:hover{border-color:var(--accent)}.btn{box-shadow:0 2px #00000024}.btn.ghost{box-shadow:none}:root{--g1:#0f55b8;--g2:#0b3a85}body.pal-emerald{--g1:#14b37f;--g2:#0a6b57;--sign:#0a7a5a;--accent:#0a7a5a;--chip:#dff3ea}body.pal-violet{--g1:#8b5cff;--g2:#4a2bb8;--sign:#5b36d6;--accent:#5b36d6;--chip:#ece6fe}body.pal-sunset{--g1:#ff7a45;--g2:#c93a5f;--sign:#c2410c;--accent:#c2410c;--chip:#fde9e0}@media(prefers-color-scheme:dark){body.pal-emerald{--accent:#5fd7a8;--chip:#12332a}body.pal-violet{--accent:#b9a2ff;--chip:#231c45}body.pal-sunset{--accent:#ff9d7a;--chip:#3a2018}}.pals{display:flex;gap:10px;align-items:center}.pal{width:28px;height:28px;border-radius:50%;border:2px solid rgba(255,255,255,.5);cursor:pointer;padding:0;transition:transform .15s}.pal:hover{transform:scale(1.15)}.pal[aria-pressed=true]{border-color:#fff;box-shadow:0 0 0 3px #ffffff73;transform:scale(1.1)}.topic{border-left:5px solid var(--tc,var(--accent))}.topic .bar i{background:var(--tc,var(--accent))}details.plan>summary{list-style:none}.stick{position:sticky;bottom:78px;z-index:5;padding:8px 0;background:linear-gradient(transparent,var(--bg) 35%)}@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.03)}to{transform:scale(1)}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.opt.ok{animation:pop .35s}.opt.bad{animation:shake .3s}.opt:active{transform:scale(.99)}.expl{border-left:5px solid transparent}.expl.good{border-left-color:var(--ok)}.expl.wrong{border-left-color:var(--bad)}nav{grid-template-columns:repeat(5,1fr)}nav button{font-size:12px}.search{width:100%;min-height:46px;border:1.5px solid var(--line);border-radius:10px;padding:8px 12px;background:var(--bg);color:var(--ink);font:inherit}.fchips{display:flex;gap:8px;flex-wrap:wrap}.fc{border:1.5px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 14px;min-height:40px;cursor:pointer;font-weight:600}.fc[aria-pressed=true]{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}.sgc{text-align:left;cursor:pointer;font:inherit;color:inherit;transition:transform .12s}.sgc:active{transform:scale(.98)}.modal{position:fixed;inset:0;background:#050c1c99;display:grid;place-items:center;padding:16px;z-index:50}.mc{background:var(--surface);border-radius:16px;padding:18px;max-width:380px;width:100%;display:flex;flex-direction:column;gap:10px;text-align:center;animation:pop .25s}.mc .big{width:180px;height:180px;margin:0 auto}.mc .big svg{width:100%;height:100%}.glrow{display:flex;flex-direction:column;gap:2px;padding:10px 0;border-top:1px solid var(--line)}.glrow:first-child{border-top:0}.gen{font-weight:700;font-size:17px}.gbn{font-weight:600;color:var(--accent)}.gm{font-size:14px}.qh{display:flex;justify-content:space-between;align-items:center;gap:8px}.qtools{display:flex;gap:6px}.icon.sm{width:40px;height:40px;font-size:18px}.star[aria-pressed=true]{color:#e0a100;border-color:#e0a100}.flame{font-weight:700;font-size:20px;white-space:nowrap}.dot.flag{box-shadow:inset 0 -4px 0 var(--amber)}.btn[aria-pressed=true].ghost{border-color:var(--amber);color:var(--ink)}a.btn{display:block;text-decoration:none;line-height:28px}.welcome{gap:14px}.welcome .brand .t1{color:#fff}.welcome h2{font-size:22px}.rch{font-weight:700;color:var(--accent);padding:10px 0 4px;border-top:1px solid var(--line);margin-top:6px}.rch:first-child{border-top:0;margin-top:0}.rule{display:flex;gap:10px;padding:8px 0}.rn{flex:none;min-width:44px;height:28px;border-radius:8px;background:var(--chip);color:var(--accent);font-weight:700;display:grid;place-items:center;font-variant-numeric:tabular-nums;padding:0 6px}.rb{min-width:0;flex:1}body.pal-mono .hero .sub,body.pal-mono .hero .eyebrow .sub,body.pal-mono .eyebrow.on{color:#d9dbe0}body.pal-mono .hero .btn .sub{color:#5a5e66}body.pal-mono{--bg:#e8eaed;--surface:#ffffff;--ink:#0a0a0b;--muted:#585c63;--line:#d0d3d9;--sign:#111;--accent:#111;--on-accent:#fff;--chip:#eceef1;--g1:#3d3e43;--g2:#050506}@media(prefers-color-scheme:dark){body.pal-mono{--bg:#050506;--surface:#131315;--ink:#f4f4f5;--muted:#a3a3ab;--line:#2b2b30;--accent:#fff;--on-accent:#050506;--chip:#1f1f23;--g1:#4b4b51;--g2:#0a0a0b}}body.pal-mono .ring .rf{stroke:#fff}.seg button[aria-pressed=true],.hbtn{color:var(--g2)}.logo text{fill:var(--g2)}.logo rect:nth-of-type(2){stroke:var(--g2)}.sign,.hero{position:relative;overflow:hidden}.sign>*,.hero>*{position:relative}.sign:before,.hero:before{content:"";position:absolute;left:0;right:0;top:0;height:52%;background:linear-gradient(180deg,#ffffff42,#ffffff0d);border-radius:inherit;border-bottom-left-radius:60% 22%;border-bottom-right-radius:60% 22%;pointer-events:none}.sign,.hero{box-shadow:0 8px 22px #00000047,inset 0 1px #ffffff59}.btn:not(.ghost):not(.hbtn){background-image:linear-gradient(180deg,#ffffff47,#fff0 55%,#00000024);box-shadow:inset 0 1px #ffffff73,0 2px #00000040}.hbtn{background-image:linear-gradient(180deg,#fff,#dfe2e6);box-shadow:inset 0 1px #fff,0 2px #0000004d}.card,.tile,.topic,.sgc{box-shadow:0 1px 2px #0a0a0c14,inset 0 1px #fff9}body.pal-mono .tile .ti{background:linear-gradient(180deg,#2c2d31,#0a0a0b);color:#fff;box-shadow:inset 0 1px #ffffff59}@media(prefers-color-scheme:dark){body.pal-mono .tile .ti{background:linear-gradient(180deg,#fff,#cfd2d7);color:#0a0a0b}}.pal[data-v=mono]{background-image:linear-gradient(135deg,#fff 0 50%,#111 50%)}.sign>*,.hero>*{position:relative;z-index:1}.sign:before,.hero:before,.sign:after,.hero:after{z-index:0}body.pal-mono .hero .btn .sub{color:#3a3e45}.sign:before,.hero:before{height:54%;background:linear-gradient(180deg,#ffffff47,#ffffff12 70%,#ffffff05);border-bottom-left-radius:55% 26%;border-bottom-right-radius:55% 26%}.sign:after,.hero:after{content:"";position:absolute;top:-30%;bottom:-30%;left:-60%;width:38%;will-change:transform;background:linear-gradient(100deg,transparent,rgba(255,255,255,.18),transparent);transform:skew(-18deg);pointer-events:none;animation:sweep 6s ease-in-out infinite}@keyframes sweep{0%,55%{transform:translate(0) skew(-18deg)}to{transform:translate(480%) skew(-18deg)}}.sign,.hero{box-shadow:0 10px 26px #00000061,inset 0 1px #ffffff73,inset 0 -2px #00000073,inset 0 0 0 1px #ffffff1f}.btn:not(.ghost):not(.hbtn){background-image:linear-gradient(180deg,#ffffff57 0,#ffffff1a 49%,#0000002e 50%,#ffffff14);box-shadow:inset 0 1px #ffffff8c,inset 0 -1px #0006,0 3px #00000059,0 6px 12px #0003}.hbtn{background-image:linear-gradient(180deg,#fff 0,#fafbfc 48%,#d3d7dc 50%,#eceef1);box-shadow:inset 0 1px #fff,inset 0 -1px #0003,0 3px #0006,0 6px 12px #00000040}body.pal-mono .tile .ti{background:linear-gradient(180deg,#5a5b60 0,#2a2b2f 49%,#000 50%,#1b1c1f);box-shadow:inset 0 1px #fff9,0 3px 8px #0000004d}@media(prefers-color-scheme:dark){body.pal-mono .tile .ti{background:linear-gradient(180deg,#fff 0,#f1f2f4 49%,#c4c8ce 50%,#e2e4e8)}}.card,.tile,.topic,.sgc{box-shadow:0 2px 6px #0a0a0c1f,inset 0 1px #ffffffe6}@media(prefers-reduced-motion:reduce){.sign:after,.hero:after{animation:none;display:none}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}header.sign.slim{padding:12px 14px;gap:0}header.sign.slim .brand{align-items:center;gap:10px}header.sign.slim .logo{width:38px;height:38px}header.sign.slim .bt{flex:1;min-width:0}header.sign.slim .t1{font-size:20px;line-height:1.15}header.sign.slim .t2{font-size:12px;letter-spacing:.06em;text-transform:uppercase;opacity:.85}.gear{flex:none;width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.35);background:#ffffff24;color:#fff;display:grid;place-items:center;cursor:pointer;padding:0}.gear svg{width:20px;height:20px}.gear[aria-expanded=true]{background:#fff;color:#111}.setp{margin-top:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.25);display:flex;flex-direction:column;gap:12px;position:relative;z-index:1}.srow{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.srow .sl{font-weight:600;font-size:14px}.srow .seg{align-self:auto}.srow .btn{width:100%}.btn.sm{min-height:40px;padding:8px 14px;font-size:14px}.card.today{display:flex;flex-direction:column;gap:10px;padding:14px 16px}.trow2{display:flex;justify-content:space-between;align-items:center;gap:10px}.acts{display:flex;gap:8px;flex-wrap:wrap}.acts .btn{flex:1 1 auto}.tlist{display:flex;flex-direction:column;gap:8px}.topic.tr{display:grid;grid-template-columns:1fr auto;align-items:center;gap:6px 10px;min-height:0;padding:12px 14px}.topic.tr .nm{font-size:15px}.topic.tr .cn{font-size:13px;font-variant-numeric:tabular-nums}.topic.tr .bar{grid-column:1/-1;height:5px}.topic.tr.all{border-left-color:var(--line);border-style:dashed;border-left-width:1px}.card.plan>summary{cursor:pointer}.hero{padding:16px}.hero h2{font-size:24px}.setp .btn.ghost,.setp .btn.ghost .sub,.setp .btn.ghost span{color:#fff!important;background:#ffffff1f;border-color:#fff6}body{background:radial-gradient(1200px 500px at 50% -120px,rgba(255,255,255,.9),transparent 70%),var(--bg);background-attachment:fixed}@media(prefers-color-scheme:dark){body{background:radial-gradient(1000px 500px at 50% -150px,rgba(255,255,255,.06),transparent 70%),var(--bg)}}.card,.topic{border-radius:16px}.card{box-shadow:0 1px 2px #0a0a0c0f,0 8px 24px -12px #0a0a0c2e}.topic.tr{grid-template-columns:auto 1fr auto;column-gap:12px;transition:transform .12s,box-shadow .12s;box-shadow:0 1px 2px #0a0a0c0d}.topic.tr:active{transform:scale(.985)}.topic.tr .ico{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:19px;background:color-mix(in srgb,var(--tc,#888) 14%,var(--surface));grid-row:1}.topic.tr .bar{grid-column:2/-1}.topic.tr.all .ico{display:none}.topic.tr.all{grid-template-columns:1fr auto}.qn{font-weight:700;font-size:14px;letter-spacing:.02em;color:var(--muted);text-transform:uppercase}.opt,[data-a=opt]{transition:transform .1s,border-color .15s,background .15s}[data-a=opt]:active{transform:scale(.99)}.sec-h{letter-spacing:-.01em}#app>*{animation:fadein .28s ease both}@keyframes fadein{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){#app>*{animation:none}}nav{backdrop-filter:blur(14px);background:color-mix(in srgb,var(--surface) 88%,transparent)}@keyframes ringIn{0%{stroke-dasharray:0 1000}}.ring .rf{animation:ringIn .9s ease-out}@keyframes slL{0%{opacity:0;transform:translate(36px)}to{opacity:1;transform:none}}@keyframes slR{0%{opacity:0;transform:translate(-36px)}to{opacity:1;transform:none}}.slide-l{animation:slL .26s ease-out}.slide-r{animation:slR .26s ease-out}.swh{text-align:center;color:var(--muted);font-size:12px;margin:2px 0 0}.combo{margin-left:8px;background:var(--amber);color:var(--on-amber);border-radius:99px;padding:1px 9px;font-weight:700;font-size:13px;animation:pop .35s}.timer.low{color:var(--bad);animation:pop 1s infinite}.banner{border-radius:12px;padding:12px;font-weight:700;display:flex;flex-direction:column;gap:2px}.banner.pass{background:var(--ok-bg);color:var(--ok)}.banner.fail{background:var(--bad-bg);color:var(--bad)}.banner .muted{font-weight:400;color:inherit;opacity:.85}.dot.mok{background:var(--ok-bg);border-color:var(--ok);color:var(--ok);cursor:default}.dot.mbad{background:var(--bad-bg);border-color:var(--bad);color:var(--bad);cursor:default}#toast{position:fixed;left:50%;top:calc(env(safe-area-inset-top,0px) + 14px);transform:translate(-50%,-140%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:99px;font-weight:600;z-index:60;transition:transform .3s;max-width:90vw;pointer-events:none}#toast.show{transform:translate(-50%)}.confetti{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:50}.game .bar.xp{margin:8px 0}.bdgs{display:flex;gap:8px;overflow-x:auto;padding:4px 0}.bdg{flex:0 0 auto;width:76px;text-align:center;display:flex;flex-direction:column;gap:2px;opacity:.38;filter:grayscale(1)}.bdg.on{opacity:1;filter:none}.bdg i{font-style:normal;font-size:26px}.bdg b{font-size:11px;font-weight:600;line-height:1.2}.readi{display:flex;gap:14px;align-items:center}.readi h3{margin:2px 0}.sm{font-size:13px}.act{display:flex;gap:8px;align-items:flex-end;height:96px}.ab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:3px;height:100%}.ab i{display:block;width:100%;max-width:34px;background:var(--line);border-radius:5px 5px 2px 2px}.ab i.on{background:var(--accent)}.ab .bv{font-size:11px;color:var(--muted);min-height:14px}.ab .bl{font-size:11px;color:var(--muted)}.spark{width:100%;max-width:360px;height:auto}.spark .ln{stroke:var(--accent);stroke-width:2.5;stroke-linejoin:round}.spark .pt{fill:var(--accent)}.spark .pl{stroke:var(--muted);stroke-width:1;stroke-dasharray:4 4;opacity:.6}.spark .pl.g{stroke:var(--ok);opacity:.9}.acc{appearance:none;background:none;border:0;border-top:1px solid var(--line);padding:10px 0;display:grid;grid-template-columns:1fr auto;gap:4px 10px;text-align:left;color:inherit;font:inherit;cursor:pointer;width:100%}.acc .pc{font-weight:700;font-variant-numeric:tabular-nums}.acc .bar{grid-column:1/-1}.bar.tone-g i{background:var(--ok)}.bar.tone-a i{background:var(--amber)}.bar.tone-r i{background:var(--bad)}.opt:active,.btn:active,.topic:active{transform:scale(.97)}.hubhead h2{margin:2px 0 0;font-size:26px;line-height:1.2;text-wrap:balance}.hubstat{display:flex;gap:8px;flex-wrap:wrap}.hubstat span{background:var(--chip);border-radius:99px;padding:4px 12px;font-weight:600;font-size:14px}.hubgrid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.hubtile{appearance:none;border:0;border-radius:20px;padding:16px 14px;min-height:178px;color:#fff;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:4px;min-width:0;background:linear-gradient(155deg,var(--hc),color-mix(in srgb,var(--hc) 62%,#000));box-shadow:0 6px 16px -6px color-mix(in srgb,var(--hc) 70%,transparent);transition:transform .12s}.hubtile:active{transform:scale(.96)}.hubtile .hi{width:46px;height:46px;border-radius:14px;background:#fff3;display:grid;place-items:center;margin-bottom:auto}.hubtile .hi svg{width:26px;height:26px}.hubtile .ht{font-weight:700;font-size:17px;line-height:1.25}.hubtile .ht .sub{font-size:13px;font-weight:500;opacity:.85}.hubtile .hn{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1}.hubtile .hl{font-size:12px;opacity:.85}.hubtile .hl .sub{display:none}.hubmock{appearance:none;border:0;border-radius:18px;padding:16px;background:var(--amber);color:var(--on-amber);display:flex;justify-content:space-between;align-items:center;gap:10px;text-align:left;cursor:pointer;font:inherit}.hubmock span:first-child{display:flex;flex-direction:column}.hubmock b{font-size:18px}.hubmock small{font-size:13px;opacity:.85}.hubmock .go{font-size:26px;font-weight:700}.hubrow{display:grid;grid-template-columns:1fr 1fr;gap:10px}.hubtile .sub{color:inherit!important}.hubstat span{display:inline-flex;align-items:center;gap:6px;align-self:flex-start}.hubstat span .sub{display:none}.hubstat{align-items:flex-start}.crumbs{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:14px}.crumbs .cb{appearance:none;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);border-radius:99px;padding:6px 14px;min-height:44px;font:inherit;font-weight:600;cursor:pointer}.crumbs ol{display:flex;flex-wrap:wrap;gap:0;list-style:none;margin:0;padding:0;min-width:0}.crumbs li+li:before{content:"\203a";margin:0 8px;color:var(--muted)}.crumbs a{color:var(--accent);text-decoration:none;font-weight:600;display:inline-block;padding:10px 0}.crumbs li[aria-current]{color:var(--muted)}img{height:auto}.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}